This program will be useful for delphi developers as framework for their own programs that have to work with Outlook Express (Windows Mail) folders and messages.
OpenGL Coordinates Tutorial 2.0
OpenGL Coordinates Tutorial with full Delphi Source Code. Tutorial on how to convert 2D mouse screen coordinates to 3D OpenGl world coordinates and how to draw with mouse in a 3D world.
OpenWire offers yot a free open source library for writing advanced VCL/FireMonkey components.